For years, the indexation of HECS-HELP student loans has been one of the most contentious issues in Australian higher education policy. When debts were indexed by 7.1% in June 2023, the outcry was immediate and bipartisan. Now, with the government's legislative response firmly in place, the landscape has fundamentally shifted. Here is a detailed look at what the new indexation rules mean for your student debt in 2026 and beyond.
The Old System and Why It Failed
Under the original HECS-HELP framework, outstanding debts were indexed each year on 1 June using the Consumer Price Index (CPI). The logic was straightforward: indexation maintained the real value of the debt without charging commercial interest rates. For most of the scheme's history, this worked reasonably well — CPI typically hovered between 1.5% and 3%, which felt manageable.
Then came the post-pandemic inflation spike. CPI shot to 7.1% for the year ending March 2023, and that rate was applied to every outstanding HECS-HELP balance in the country. A graduate with a $45,000 debt suddenly owed an extra $3,195 — not because they had borrowed more money, but because groceries and petrol had become more expensive. The system was clearly broken.
If you are still repaying a HECS debt, use our HECS-HELP calculator to see your current repayment obligations based on the latest thresholds.
How the New Indexation Cap Works
The reform, legislated in mid-2024 following the Universities Accord review, introduces a simple but effective change. From 1 June 2023 onwards, HECS-HELP debts are indexed at the lower of CPI or the Wage Price Index (WPI). This ensures that student debt can never grow faster than average wages — a principle that most economists agree is fundamentally fairer.
Here is how the two benchmarks have compared in recent years:
- June 2023: CPI 7.1% vs WPI 3.2% — new rate: 3.2% (saving of 3.9 percentage points)
- June 2024: CPI 4.0% vs WPI 3.6% — new rate: 3.6% (saving of 0.4 percentage points)
- June 2025: CPI 3.1% vs WPI 3.4% — new rate: 3.1% (CPI was lower, so CPI applied)
Notice that the formula works both ways. When CPI is lower than WPI (as in June 2025), the CPI rate applies. The borrower always gets the better deal.
Retrospective Credits: Money Back in Your Pocket
Perhaps the most significant aspect of the reform is its retrospective application. The government recalculated the June 2023 indexation using the lower WPI rate and credited the difference back to every affected borrower. For someone with a $50,000 balance, the retrospective credit was approximately $1,950.
These credits were applied automatically to outstanding balances through the ATO — no action was required from borrowers. If you had already fully repaid your HECS debt by the time the credits were processed, you received a refund. The total cost to the budget was approximately $3 billion, but the political capital gained was considerable.
Check your current balance and see how your repayments interact with your salary using our salary calculator, which includes HECS-HELP withholding calculations.
Long-Term Savings for Current Borrowers
The compounding effect of lower indexation is where the real savings emerge. Let us model a typical scenario: a graduate who finished university in 2022 with a $40,000 HECS debt, now earning $75,000 and making minimum compulsory repayments.
Under the old CPI-only system, assuming average CPI of 3.5% over the next decade, this borrower would have paid approximately $52,400 in total before clearing the debt (principal plus accumulated indexation). Under the new lower-of-CPI-or-WPI system, assuming WPI averages 3.0%, the total falls to approximately $48,100 — a saving of around $4,300 over the life of the loan.
For graduates with larger debts — medical and law graduates routinely carry $80,000 to $120,000 — the savings scale proportionally. A $100,000 debt could see savings of $10,000 or more depending on future inflation and wage trends.
Should You Still Make Voluntary Repayments?
This question comes up constantly in personal finance forums, and the new indexation rules change the answer for most people. With indexation now likely to sit between 2.5% and 3.5% in normal times, your HECS debt carries one of the lowest "interest rates" of any borrowing in Australia.
Compare that to:
- High-interest savings accounts: 4.5% to 5.5%
- Index fund returns (long-term average): 7% to 9%
- Mortgage interest rates: 5.5% to 6.5%
In almost every scenario, putting spare cash into savings, investments, or extra mortgage repayments delivers a better financial outcome than voluntarily paying down HECS. The exception might be if you are close to retirement and want to eliminate the debt before your income drops, but for most working-age Australians, the compulsory repayment system works perfectly well.
Our salary calculator shows how HECS repayments interact with your income tax, Medicare Levy, and super contributions to determine your actual take-home pay.
Repayment Thresholds for FY2025-26
The compulsory repayment thresholds are indexed separately from the debt itself. For FY2025-26, you only start repaying when your total repayment income exceeds $54,435. The rates are progressive:
- $54,435 to $62,850: 1.0%
- $62,851 to $70,618: 2.0% to 2.5%
- $70,619 to $86,399: 3.0% to 3.5%
- $86,400 to $151,200: 4.0% to 8.0%
- Above $151,201: 10.0%
Remember that "repayment income" includes investment income, rental income, and reportable super contributions — not just your salary. If you have a side hustle or investment property, those earnings could push you into a higher repayment bracket. Use our rental income calculator to understand how investment property income affects your total tax position including HECS.
What the Critics Say
While the indexation reform has been broadly welcomed, some commentators argue it does not go far enough. The National Union of Students has called for HECS indexation to be scrapped entirely, arguing that the government should bear the full cost of inflation on student loans. Others have suggested raising the repayment threshold to $75,000 to give graduates more breathing room in the critical early years of their careers.
On the other side, fiscal hawks warn that the retrospective credits and lower future indexation rates will cost the budget billions over the forward estimates, potentially crowding out spending on other higher education priorities like research funding and university infrastructure.
The Bottom Line
The HECS-HELP indexation reform is a genuine win for the 3 million Australians carrying student debt. By capping indexation at the lower of CPI or WPI, the government has created a system that is fairer, more predictable, and less vulnerable to inflationary shocks. The retrospective credits provided immediate relief, and the ongoing savings will compound over the life of each loan.
If you are carrying a HECS-HELP debt, log in to myGov to check your updated balance, review your repayment rate against our HECS-HELP calculator, and redirect any money you were considering for voluntary repayments towards higher-returning investments instead.